dihydro-5-pentyl-2(3h)-furanone

dairy lactone Key food odorant

Found in 2 ingredients across the CompKitchen flavor graph.

Look up another compound — search by name, CAS number, PubChem CID, or FEMA #.

Key food odorant (intermediary)

Dunkel et al. 2014

Identified in the meta-analysis of 227 food samples as one of 57 intermediary odorants — appears in 5–25% of foods.

Source: Angew. Chem. Int. Ed. 2014, 53, 7124–7143

Properties

Odor description: milky
Odor threshold — orthonasal, in clean water: 21.0 ppb – 47.5 ppb median 34.2 ppb · 2 published values · see all 9 with sources
CAS number: 104-61-0

Not in FEMA GRAS publications 1-33. Of 3,367 listed flavoring substances, none match this compound name. May still be food-safe under other regulatory routes (FDA 21 CFR 172, EFSA, JECFA) — check femaflavor.org for the authoritative current list.

Published thresholds

9 measured values from the literature. Grouped by what was actually measured — a threshold smelled in clean water, tasted in the mouth, or measured in a real food are three different quantities and are not pooled.

Orthonasal, in clean water

21.0 ppb – 47.5 ppb

The reference measurement — smelled in water. OAV is computed against this.

Threshold	Matrix	Source	Paper
21.0 ppb	water/ethanol 6:4 (food: american bourbon whisky)	Literature corpus	—
47.5 ppb SIDA	water	Rychlik 1998 · 1 studies	—

In a food matrix

0.270 ppb – 27.0 ppb

Measured in a real food, where the matrix shifts detection — not a clean-water value.

Threshold	Matrix	Source	Paper
0.270 ppb	water (food: longjing green tea infusion)	Literature corpus	—
9.7 ppb	water (food: reference standard (water))	Literature corpus	—
27.0 ppb	water (food: beef vegetable gravy)	Literature corpus	—
27.0 ppb	water (food: pork vegetable gravy)	Literature corpus	—

Retronasal / in-mouth

219 ppb

Tasted rather than smelled — a different sense, not comparable.

Threshold	Matrix	Source	Paper
219 ppb SIDA	oil_retronasal	Rychlik 1998 · 1 studies	—

Other matrix

42.0 ppb – 148 ppb

Measured in a non-aqueous medium (oil, starch, cellulose).

Threshold	Matrix	Source	Paper
42.0 ppb	wine matrix (12% ethanol) (food: red wine)	Literature corpus	—
148 ppb SIDA	oil_orthonasal	Rychlik 1998 · 1 studies	—

Only values we can attribute are listed. Where a compendium's licence does not permit public attribution its figures are omitted here, so every number on this page traces to a citable source.

Thresholds in published tables

Numbers printed in open-access papers, grouped by the medium the table states. Median and full range of the values; “agree” means two or more papers whose middle 80% of values sit within 100×. Not reviewed.

Medium	Median	Range	Values	Papers	Papers agree?
air	58 µg/L air	25–91	2	2	yes
ethanol solution	32.05 ppb	9.7–90.7	8	6	yes
food matrix	25 ppb	2.5–2e+04	19	16	yes
model wine or beer	30 ppb	30–30	1	1	one paper
not applicable	9.7 ppb	9.7–9.7	1	1	one paper
oil	2400 ppb	2.4e+03–2.4e+03	1	1	one paper
unstated	25 ppb	0.0079–90.7	40	33	yes
water	10.85 ppb	0.28–790	22	22	yes

Found in

Measured impact first, then profile share

Every ingredient known to contain dihydro-5-pentyl-2(3h)-furanone. Ingredients with a measured concentration come first, ranked by odour activity; the rest follow by how large a share of that ingredient's profile this molecule is. The figure beside each is how many different compounds that ingredient has in total — not the concentration of dihydro-5-pentyl-2(3h)-furanone in it.

209 cmpds

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